There is no denying that fuel is the most frequent expenditure that drivers have. where you fill your tank is either down to personal preference or ease of convenience. Some people prefer “actual” petrol stations as opposed to an supermarket chain, yet both love the sweet allure of loyalty points when topping up.
It was rumoured that you don’t get the same fuel at supermarkets that you do at other petrol stations. That is in fact true. It is not the exact same although though they all have to comply to British and European Standards. Petrol companies tend to add other concoctions in their fuel for additional benefit, yet the mixtures do not in fact make that much difference.
So if you are looking to save the most money on fuel, fill up at a supermarket. Ideally one with a decent reward system that whether gives you additional fuel benefits or at least saves you money on your weekly shop.